/// <summary>
/// 生成谷歌身份证号
/// </summary>
/// <param name="randomNumber">随机数字长度必须小于等于10位数</param>
/// <returns></returns>
public static string GenerateIdentity(int randomNumber)
{
string origNum = randomNumber.ToString();
if (origNum.Length <= 0)
{
throw new ArgumentException("randomNumber must be 10 length");
}
if (origNum.Length > 10)
{
origNum = origNum.Substring(0, 10);
}
else if (origNum.Length < 10)
{
origNum = origNum.PadLeft(10, '0');
}
else
{
//NOTING
}
GoogleBase32Encoder enc = new GoogleBase32Encoder();
return(enc.Encode(Encoding.ASCII.GetBytes(origNum)));
}
/// <summary>
/// 根据身份证还原随机数
/// </summary>
/// <param name="secret">谷歌身份证字符串</param>
/// <returns></returns>
public static string ReductionIdentity(string secret)
{
if (string.IsNullOrEmpty(secret))
{
throw new ArgumentNullException("secret");
}
GoogleBase32Encoder enc = new GoogleBase32Encoder();
return(Encoding.ASCII.GetString(enc.Decode(secret)));
}
/// <summary>
/// 生成谷歌身份证号
/// </summary>
/// <param name="keyNumber">服务端约定的10位数字</param>
/// <returns></returns>
public static string GenerateIdentity(string keyNumber)
{
if (!Regex.IsMatch(keyNumber, @"^\d{10}$", RegexOptions.IgnoreCase))
{
throw new ArgumentException("keyNumber must be 10 length");
}
GoogleBase32Encoder enc = new GoogleBase32Encoder();
return(enc.Encode(Encoding.ASCII.GetBytes(keyNumber)));
}
